rrdfirst − Return the date of the first data sample in an RRA within an RRD
rrdtool first filename [−−rraindex number] [−−daemon|−d address]
The first
function returns the UNIX timestamp of the
first data sample entered into the specified
RRA of the RRD file.
filename
The name of the RRD that contains the data.
−−rraindex number
The index number of the RRA that is to be examined. If not specified, the index defaults to zero. RRA index numbers can be determined through rrdtool info.
−−daemon|−d address
Address of the rrdcached daemon. For a list of accepted formats, see the −l option in the rrdcached manual.
rrdtool first −−daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd
Burton Strauss <[email protected]> Daemon support added by Steve Shipway <[email protected]>